Alert archive / Pennsylvania / Winter Storm Warnings in 2020
Winter Storm Warning 1, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this winter storm warning at Dec 15, 2020, 3:18 AM EST for 10 counties in Pennsylvania; 8 counties in New Jersey. It took effect at Dec 16, 2020, 12:00 PM EST. It was in force for 18 hr. 60 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 15, 2020, 3:18 AM EST (08:18 UTC)
- In effect from
- Dec 16, 2020, 12:00 PM EST
- Expired
- Dec 17, 2020, 6:16 AM EST
- In force
- 18 hr
- Issued by
- NWS Philadelphia/Mount Holly
Counties Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Berks County, PA, Bucks County, PA, Carbon County, PA, Chester County, PA, Delaware County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 85 km from the middle of the area, began a volume at 08:16 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 16, 12:28 PM EST | HEAVY SNOW 0.2 | Howell, NJ | |
| Dec 16, 3:15 PM EST | SNOW 2.5 | 1 Wsw Lincoln Universit, PA | |
| Dec 16, 3:15 PM EST | SNOW 2.5 | Landenberg, PA | SOCIAL MEDIA REPORT. |
| Dec 16, 3:38 PM EST | SNOW 2.3 | Aston Twp., PA | SOCIAL MEDIA. |
| Dec 16, 3:42 PM EST | SNOW 2 | Northeast Philadelphia, PA | SOCIAL MEDIA REPORT. |
| Dec 16, 3:55 PM EST | SNOW 2.5 | Parkside, PA | SOCIAL MEDIA REPORT. |
| Dec 16, 3:57 PM EST | SNOW 3.3 | Clifton Heights, PA | HEAVY SNOW FALLING. CARS & SUVS STRUGGLING TO GET UP HILLS. |
| Dec 16, 4:00 PM EST | SNOW 2.5 | Upper Darby, PA | |
| Dec 16, 4:00 PM EST | SNOW 3 | Chester, PA | SOCIAL MEDIA REPORT. |
| Dec 16, 4:00 PM EST | SNOW 6 | Oxford, PA | |
| Dec 16, 4:14 PM EST | SNOW 2 | 1 S Philadelphia, PA | SOCIAL MEDIA REPORT. |
| Dec 16, 4:24 PM EST | SNOW 3.5 | West Philadelphia, PA | SOCIAL MEDIA REPORT. |
| Dec 16, 4:30 PM EST | SNOW 2.3 | Howell, NJ | CORRECTS PREVIOUS SNOW REPORT FROM HOWELL. |
| Dec 16, 4:35 PM EST | SNOW 3 | 1 S Philadelphia, PA | SOCIAL MEDIA REPORT. |
| Dec 16, 4:45 PM EST | SNOW 5.5 | Aston Twp., PA | SOCIAL MEDIA REPORT. |
| Dec 16, 4:50 PM EST | SNOW 4 | Upper Darby, PA | UPDATES PREVIOUS SNOW REPORT FROM UPPER DARBY. |
| Dec 16, 4:55 PM EST | SNOW 4.5 | Parkside, PA | UPDATES PREVIOUS SOCIAL MEDIA REPORT. |
| Dec 16, 5:00 PM EST | SNOW 2 | Exeter Twp, PA | SOCIAL MEDIA REPORT. STILL SNOWING. |
| Dec 16, 5:00 PM EST | SNOW 2 | Shillington, PA | SOCIAL MEDIA REPORT. STILL SNOWING HEAVILY. |
| Dec 16, 5:00 PM EST | SNOW 5 | East Nantmeal Twp, PA | SOCIAL MEDIA REPORT. |
| Dec 16, 5:00 PM EST | SNOW 5.2 | Thornton, PA | SLEET BEGAN MIXING IN AROUND 4:50 PM. |
| Dec 16, 5:00 PM EST | SNOW 5.3 | Jennersville, PA | SOCIAL MEDIA REPORT. STARTING TO MIX WITH SLEET NOW. |
| Dec 16, 5:04 PM EST | SNOW 7 | Oxford, PA | INCLUDES 1/4 INCH OF SLEET. |
| Dec 16, 5:08 PM EST | SNOW 5.8 | Aston Twp., PA | SOCIAL MEDIA REPORT. STARTING TO MIX WITH SLEET NOW. |
| Dec 16, 5:09 PM EST | SNOW 6.5 | Folsom, PA | SOCIAL MEDIA REPORT. STARTING TO CHANGE TO SLEET. |
| Dec 16, 5:10 PM EST | SNOW 6 | Thornbury Twp, PA | |
| Dec 16, 5:15 PM EST | SNOW 5 | Rittenhouse Square, PA | SOCIAL MEDIA REPORT FROM CENTER CITY. MEASUREMENT TAKEN ON AN ELEVATED BALCONY. |
| Dec 16, 5:20 PM EST | SNOW 3 | Doylestown, PA | SOCIAL MEDIA REPORT. |
| Dec 16, 5:22 PM EST | SNOW 3.2 | Howell, NJ | UPDATES PREVIOUS SNOW REPORT FROM HOWELL. STILL SNOWING AS OF 5:20 PM. |
| Dec 16, 5:25 PM EST | SNOW 4 | Pottstown, PA | SOCIAL MEDIA REPORT. |
| Dec 16, 5:28 PM EST | SNOW 4.5 | Wayne, PA | SOCIAL MEDIA REPORT. |
| Dec 16, 5:29 PM EST | SNOW 1.8 | Wall Twp, NJ | |
| Dec 16, 5:36 PM EST | SNOW 4.3 | Berwyn, PA | SOCIAL MEDIA REPORT. SNOW HAS CHANGED TO SLEET. |
| Dec 16, 5:40 PM EST | SNOW 3 | Plumsteadville, PA | |
| Dec 16, 5:40 PM EST | SNOW 4.5 | East Coventry Twp, PA | |
| Dec 16, 5:43 PM EST | SNOW 5.5 | Newtown Square, PA | SOCIAL MEDIA REPORT. |
| Dec 16, 5:44 PM EST | SNOW 2.5 | Hatboro, PA | |
| Dec 16, 5:45 PM EST | SNOW 6.4 | Trappe, PA | |
| Dec 16, 5:48 PM EST | SNOW 1.2 | Atlantic Highlands, NJ | SOCIAL MEDIA REPORT. |
| Dec 16, 5:50 PM EST | SNOW 6.5 | King Of Prussia, PA | |
| Dec 16, 5:53 PM EST | SNOW 4.3 | Chalfont, PA | |
| Dec 16, 5:55 PM EST | SNOW 5.8 | Spring Twp, PA | UPDATES PREVIOUS SOCIAL MEDIA REPORT FROM SPRING TWP. |
| Dec 16, 5:57 PM EST | SNOW 3.5 | West Grove, PA | SOCIAL MEDIA REPORT. INCLUDES SOME SLEET WITH COMPA. |
| Dec 16, 5:57 PM EST | SNOW 4 | Chalfont, PA | |
| Dec 16, 6:00 PM EST | SNOW 3 | Easton, PA | SOCIAL MEDIA REPORT. |
| Dec 16, 6:00 PM EST | SNOW 4 | Lansdale, PA | |
| Dec 16, 6:00 PM EST | SNOW 6.5 | West Lawn, PA | SOCIAL MEDIA REPORT. |
| Dec 16, 6:02 PM EST | SNOW 4.5 | Howell, NJ | UPDATES PREVIOUS SNOW REPORT FROM HOWELL. STILL SNOWING AS OF 6:02 PM. |
| Dec 16, 6:05 PM EST | SNOW 6 | 1 S Howell, NJ | SOCIAL MEDIA REPORT. PICTURE OF MEASUREMENT IN THE GRASS. |
| Dec 16, 6:15 PM EST | SNOW 4 | Freehold, NJ | |
| Dec 16, 6:15 PM EST | SNOW 5.3 | Clifton Heights, PA | |
| Dec 16, 6:15 PM EST | SNOW 5.5 | Langhorne, PA | |
| Dec 16, 6:20 PM EST | SNOW 5.7 | New Hanover Twp, PA | |
| Dec 16, 6:30 PM EST | SNOW 5 | 3 Ne Lambertville, NJ | |
| Dec 16, 6:30 PM EST | SNOW 5.5 | Chalfont, PA | UPDATES PREVIOUS SNOW REPORT FROM CHALFONT. |
| Dec 16, 6:30 PM EST | SNOW 5.5 | Fairless Hills, PA | |
| Dec 16, 6:40 PM EST | SNOW 4.5 | Plumsteadville, PA | |
| Dec 16, 6:40 PM EST | SNOW 5.8 | Warminster, PA | |
| Dec 16, 6:45 PM EST | SNOW 6.8 | Spring Twp, PA | |
| Dec 16, 6:50 PM EST | SNOW 3 | Edison, NJ |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 8.3 hours before the alert went out and 192 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 602 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- -202 m²/s²
- 0-3 km storm-relative helicity
- -66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
461 WWUS41 KPHI 150818 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 318 AM EST Tue Dec 15 2020 NJZ001-007-PAZ054-055-060>062-152300- /O.UPG.KPHI.WS.A.0001.201216T1500Z-201217T1500Z/ /O.NEW.KPHI.WS.W.0001.201216T1500Z-201217T1500Z/ Sussex-Warren-Carbon-Monroe-Berks-Lehigh-Northampton- Including the cities of Newton, Washington, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, and Easton 318 AM EST Tue Dec 15 2020 ...WINTER STORM WARNING IN EFFECT FROM 10 AM WEDNESDAY TO 10 AM EST THURSDAY... * WHAT...Heavy snow expected. Total snow accumulations of 20 to 24 inches. Winds gusting as high as 35 mph. * WHERE...Portions of northern New Jersey and east central and northeast Pennsylvania. * WHEN...From 10 AM Wednesday to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the evening commute on Wednesday and the morning commute on Thursday. The heavy snow could result in power outages. * ADDITIONAL DETAILS...Snow will move in southwest to northeast late Wednesday morning into the early afternoon. The snow could become heavy at times late Wednesday afternoon into Wednesday evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ008>010-012-015-PAZ070-071-101>106-152300- /O.UPG.KPHI.WS.A.0001.201216T1500Z-201217T1500Z/ /O.NEW.KPHI.WS.W.0001.201216T1500Z-201217T1500Z/ Morris-Hunterdon-Somerset-Middlesex-Mercer-Delaware-Philadelphia- Western Chester-Eastern Chester-Western Montgomery- Eastern Montgomery-Upper Bucks-Lower Bucks- Including the cities of Morristown, Flemington, Somerville, New Brunswick, Trenton, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 318 AM EST Tue Dec 15 2020 ...WINTER STORM WARNING IN EFFECT FROM 10 AM WEDNESDAY TO 10 AM EST THURSDAY... * WHAT...Heavy mixed precipitation expected. Total snow accumulations in excess of 12 inches along with ice accumulations of a light glaze. Winds gusting as high as 35 mph. * WHERE...Portions of central, northern and northwest New Jersey and southeast Pennsylvania. * WHEN...From 10 AM Wednesday to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the evening commute on Wednesday and the morning commute on Thursday. The heavy snow could result in power outages. * ADDITIONAL DETAILS...Snow will move in southwest to northeast late Wednesday morning into the early afternoon. The snow could become heavy at times late Wednesday afternoon into Wednesday night. There may also be some sleet and freezing rain mixed in at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ DEZ001-NJZ013-016>019-152300- /O.CON.KPHI.WS.A.0001.201216T1500Z-201217T1500Z/ New Castle-Western Monmouth-Salem-Gloucester-Camden- Northwestern Burlington- Including the cities of Wilmington, Freehold, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, and Mount Holly 318 AM EST Tue Dec 15 2020 ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH THURSDAY MORNING... * WHAT...Heavy mixed precipitation possible. Total snow accumulations in excess of 5 inches are possible and ice accumulations of a light glaze are possible. Winds could gust as high as 40 mph. * WHERE...Portions of central and southern New Jersey and northern Delaware. * WHEN...From Wednesday morning through Thursday morning. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the evening commute Wednesday and the morning commute Thursday. The heavy wet snow combined with gusty winds could result in sporadic power outages. * ADDITIONAL DETAILS...Snow will move into the region southwest to northeast late Wednesday morning into the afternoon. The snow may become heavy at times late Wednesday afternoon into Wednesday night. There will likely be a sharp gradient in snow totals depending on precipitation type, as the snow is likely to mix with or change to sleet, freezing rain, or rain across parts of the region. Precipitation may then change back to snow before ending Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ MPS
7 follow-up statements
399 WWUS41 KPHI 152029 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 329 PM EST Tue Dec 15 2020 NJZ013-160930- /O.UPG.KPHI.WS.A.0001.201216T1500Z-201217T1500Z/ /O.EXB.KPHI.WS.W.0001.201216T1700Z-201217T1500Z/ Western Monmouth- Including the city of Freehold 329 PM EST Tue Dec 15 2020 ...WINTER STORM WARNING IN EFFECT FROM NOON WEDNESDAY TO 10 AM EST THURSDAY... * WHAT...Heavy mixed precipitation expected. Total snow and sleet accumulations of 5 to 10 inches. Winds gusting as high as 50 mph. * WHERE...Western Monmouth. * WHEN...From noon Wednesday to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the evening commute Wednesday and the morning commute Thursday. The heavy wet snow combined with gusty winds could result in sporadic power outages. * ADDITIONAL DETAILS...Snow will move into the area Wednesday afternoon or early evening. The snow may become heavy at times Wednesday evening and overnight. There will likely be a sharp gradient in snow totals across Monmouth County due to snow mixing with or changing to sleet or rain. The highest totals will occur over the western portion of the county. Over the eastern and southeastern portion of county, lower snowfall totals are forecast. In areas where precipitation changes to sleet or rain, it will then likely change back to snow before ending Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ001-007>010-PAZ054-055-060>062-101-103-105-160930- /O.EXT.KPHI.WS.W.0001.201216T1700Z-201217T1500Z/ Sussex-Warren-Morris-Hunterdon-Somerset-Carbon-Monroe-Berks- Lehigh-Northampton-Western Chester-Western Montgomery-Upper Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 329 PM EST Tue Dec 15 2020 ...WINTER STORM WARNING NOW IN EFFECT FROM NOON WEDNESDAY TO 10 AM EST THURSDAY... * WHAT...Heavy snow expected, which may mix with sleet. Total snow accumulations of 12 to 20 inches. Winds gusting as high as 35 mph. * WHERE...Portions of central, northern and northwest New Jersey and southeast Pennsylvania. * WHEN...From noon Wednesday to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the evening commute on Wednesday and the morning commute on Thursday. The heavy snow could result in power outages. * ADDITIONAL DETAILS...Snow will move in from southwest to northeast Wednesday afternoon and early evening. The snow could become heavy at times Wednesday evening into Wednesday night before ending Thursday morning. There may also be some sleet mixed in at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ012-015-PAZ070-071-102-104-106-160930- /O.EXT.KPHI.WS.W.0001.201216T1700Z-201217T1500Z/ Middlesex-Mercer-Delaware-Philadelphia-Eastern Chester- Eastern Montgomery-Lower Bucks- Including the cities of New Brunswick, Trenton, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 329 PM EST Tue Dec 15 2020 ...WINTER STORM WARNING NOW IN EFFECT FROM NOON WEDNESDAY TO 10 AM EST THURSDAY... * WHAT...Heavy mixed precipitation expected. Total snow and sleet accumulations of 6 to 12 inches. Winds gusting as high as 35 mph. * WHERE...Portions of central, northern and northwest New Jersey and southeast Pennsylvania. * WHEN...From noon Wednesday to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the evening commute on Wednesday and the morning commute on Thursday. The heavy snow could result in power outages. * ADDITIONAL DETAILS...Snow will move in from southwest to northeast Wednesday afternoon and early evening. The snow could become heavy at times Wednesday evening. The snow will likely mix with and change to sleet late Wednesday evening and Wednesday night, before ending as a period of snow on Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ DEZ001-NJZ016>019-160930- /O.UPG.KPHI.WS.A.0001.201216T1500Z-201217T1500Z/ /O.NEW.KPHI.WW.Y.0008.201216T1700Z-201217T1500Z/ New Castle-Salem-Gloucester-Camden-Northwestern Burlington- Including the cities of Wilmington, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, and Mount Holly 329 PM EST Tue Dec 15 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON WEDNESDAY TO 10 AM EST THURSDAY... * WHAT...Snow and sleet expected. Total snow and sleet accumulations of 2 to 5 inches. Winds gusting as high as 40 mph. * WHERE...In New Jersey, Salem, Gloucester, Camden and Northwestern Burlington. In Delaware, New Castle. * WHEN...From noon Wednesday to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult. The hazardous conditions could affect the evening commute Wednesday and the morning commute on Thursday. * ADDITIONAL DETAILS...Snow will move in from southwest to northeast Wednesday afternoon and early evening. The snow could become heavy at times Wednesday evening. The snow will mix with and change to sleet or rain late Wednesday evening and Wednesday night, before ending as a period of snow on Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
831 WWUS41 KPHI 160818 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 318 AM EST Wed Dec 16 2020 NJZ001-007>010-PAZ054-055-060>062-101-103-105-162300- /O.CON.KPHI.WS.W.0001.201216T1700Z-201217T1500Z/ Sussex-Warren-Morris-Hunterdon-Somerset-Carbon-Monroe-Berks- Lehigh-Northampton-Western Chester-Western Montgomery-Upper Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 318 AM EST Wed Dec 16 2020 ...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 AM EST THURSDAY... * WHAT...Heavy snow expected. Total snow accumulations of 12 to 20 inches. Winds gusting as high as 35 mph. * WHERE...Portions of northern and northwest New Jersey and east central, northeast and southeast Pennsylvania. * WHEN...From noon today to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the evening commute tonight and the morning commute on Thursday. Heavy snow and gusty winds could result in power outages. * ADDITIONAL DETAILS...Snow will move in from southwest to northeast this afternoon and early evening. The snow could become heavy at times tonight before ending Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ012-015-PAZ070-071-102-104-106-162300- /O.CON.KPHI.WS.W.0001.201216T1700Z-201217T1500Z/ Middlesex-Mercer-Delaware-Philadelphia-Eastern Chester- Eastern Montgomery-Lower Bucks- Including the cities of New Brunswick, Trenton, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 318 AM EST Wed Dec 16 2020 ...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 AM EST THURSDAY... * WHAT...Heavy snow mixed with sleet expected. Total snow and sleet accumulations of 6 to 12 inches. Winds gusting as high as 40 mph. * WHERE...Portions of central and northern New Jersey and southeast Pennsylvania. * WHEN...From noon today to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions will impact the evening commute tonight and the morning commute on Thursday. Heavy snow and gusty winds could result in power outages. * ADDITIONAL DETAILS...Snow will move in from southwest to northeast this afternoon and early evening, and will be heavy at times this evening. The snow will likely mix with and change to sleet this evening, before ending as a period of snow on Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ013-162300- /O.CON.KPHI.WS.W.0001.201216T1700Z-201217T1500Z/ Western Monmouth- Including the city of Freehold 318 AM EST Wed Dec 16 2020 ...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 AM EST THURSDAY... * WHAT...Heavy mixed precipitation expected. Total snow and sleet accumulations of 4 to 8 inches. Winds gusting as high as 45 mph. * WHERE...Western Monmouth. * WHEN...From noon today to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the evening commute tonight and the morning commute Thursday. The heavy wet snow combined with gusty winds could bring down tree branches and result in sporadic power outages. * ADDITIONAL DETAILS...Snow will move into the area late this afternoon or early evening. The snow may become heavy at times this evening and through the overnight. There will likely be a sharp gradient in snow totals across Monmouth County due to snow mixing with or changing to sleet or rain. The highest totals will occur over the western portion of the county. Over the eastern and southeastern portion of county, lower snowfall totals are expected. In areas where precipitation changes to sleet or rain, it will then likely change back to snow before ending Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ DEZ001-NJZ016>019-162300- /O.CON.KPHI.WW.Y.0008.201216T1700Z-201217T1500Z/ New Castle-Salem-Gloucester-Camden-Northwestern Burlington- Including the cities of Wilmington, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, and Mount Holly 318 AM EST Wed Dec 16 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 10 AM EST THURSDAY... * WHAT...Wet snow expected. Total snow accumulations of 2 to 5 inches. Winds gusting as high as 40 mph. * WHERE...In New Jersey, Gloucester, Salem, Northwestern Burlington and Camden. In Delaware, New Castle. * WHEN...From noon today to 10 AM EST Thursday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the evening commute tonight and the morning commute on Thursday. * ADDITIONAL DETAILS...Snow will move in from southwest to northeast this afternoon and early evening. The snow could become heavy at times this evening. The snow will mix with and change to sleet or rain tonight, before ending as a period of snow on Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MPS
097 WWUS41 KPHI 162018 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 318 PM EST Wed Dec 16 2020 NJZ001-007>010-PAZ054-055-060>062-101-103-105-170930- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Sussex-Warren-Morris-Hunterdon-Somerset-Carbon-Monroe-Berks- Lehigh-Northampton-Western Chester-Western Montgomery-Upper Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 318 PM EST Wed Dec 16 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THURSDAY... * WHAT...Heavy snow. Additional snow accumulations of 12 to 20 inches. Winds gusting as high as 40 mph. * WHERE...Portions of northern and northwest New Jersey and east central, northeast and southeast Pennsylvania. * WHEN...Until 10 AM EST Thursday. * IMPACTS...Travel will be very difficult to impossible. The hazardous conditions will impact the evening commute tonight and the morning commute on Thursday. Heavy snow combined with gusty winds could result in power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ012-015-PAZ070-071-102-104-106-170930- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Middlesex-Mercer-Delaware-Philadelphia-Eastern Chester- Eastern Montgomery-Lower Bucks- Including the cities of New Brunswick, Trenton, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 318 PM EST Wed Dec 16 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THURSDAY... * WHAT...Heavy snow, which will likely mix with or change to sleet. Additional snow and sleet accumulations of 5 to 9 inches. Winds gusting as high as 45 mph. * WHERE...Portions of central and northern New Jersey and southeast Pennsylvania. * WHEN...Until 10 AM EST Thursday. * IMPACTS...Travel will be very difficult. The hazardous conditions will impact the evening commute tonight and the morning commute on Thursday. Heavy snow and gusty winds could result in power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ013-170930- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Western Monmouth- Including the city of Freehold 318 PM EST Wed Dec 16 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THURSDAY... * WHAT...Heavy snow, which will likely mix with or change to sleet or rain. Additional snow and sleet accumulations of 3 to 7 inches. Winds gusting as high as 55 mph. * WHERE...Western Monmouth. * WHEN...Until 10 AM EST Thursday. * IMPACTS...Travel will be very difficult. The hazardous conditions will impact the evening commute tonight and the morning commute on Thursday. Heavy snow and gusty winds could result in power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ DEZ001-NJZ016>019-170930- /O.CON.KPHI.WW.Y.0008.000000T0000Z-201217T1500Z/ New Castle-Salem-Gloucester-Camden-Northwestern Burlington- Including the cities of Wilmington, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, and Mount Holly 318 PM EST Wed Dec 16 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THURSDAY... * WHAT...Snow changing to sleet then rain. Additional snow accumulations of 2 to 4 inches inches. Winds gusting as high as 45 mph. * WHERE...In New Jersey, Gloucester, Salem, Northwestern Burlington and Camden. In Delaware, New Castle. * WHEN...Until 10 AM EST Thursday. * IMPACTS...Travel will be very difficult. The hazardous conditions will impact the evening commute tonight and the morning commute on Thursday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$
014 WWUS41 KPHI 170823 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 323 AM EST Thu Dec 17 2020 NJZ001-007>010-PAZ054-055-060>062-101-103-105-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Sussex-Warren-Morris-Hunterdon-Somerset-Carbon-Monroe-Berks- Lehigh-Northampton-Western Chester-Western Montgomery-Upper Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 323 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy snow. Additional snow accumulations of 4 to 6 inches. Winds gusting as high as 35 mph. * WHERE...Portions of northern and northwest New Jersey and east central, northeast and southeast Pennsylvania. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ012-015-PAZ070-071-102-104-106-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Middlesex-Mercer-Delaware-Philadelphia-Eastern Chester- Eastern Montgomery-Lower Bucks- Including the cities of New Brunswick, Trenton, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 323 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy snow. Additional snow accumulations of up 2 to 4 inches. Winds gusting as high as 35 mph. * WHERE...Portions of central and northern New Jersey and southeast Pennsylvania. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ013-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Western Monmouth- Including the city of Freehold 323 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy mixed precipitation. Additional snow accumulations of up to one inch and ice accumulations of a light glaze. Winds gusting as high as 45 mph. * WHERE...Western Monmouth. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ DEZ001-NJZ016>019-171500- /O.CON.KPHI.WW.Y.0008.000000T0000Z-201217T1500Z/ New Castle-Salem-Gloucester-Camden-Northwestern Burlington- Including the cities of Wilmington, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, and Mount Holly 323 AM EST Thu Dec 17 2020 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Mixed precipitation. Additional snow accumulations of up to one inch and ice accumulations of a light glaze. Winds gusting as high as 35 mph. * WHERE...In New Jersey, Gloucester, Salem, Northwestern Burlington and Camden. In Delaware, New Castle. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MPS
224 WWUS41 KPHI 171011 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 511 AM EST Thu Dec 17 2020 DEZ001-NJZ016>019-171115- /O.CAN.KPHI.WW.Y.0008.000000T0000Z-201217T1500Z/ New Castle-Salem-Gloucester-Camden-Northwestern Burlington- Including the cities of Wilmington, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, and Mount Holly 511 AM EST Thu Dec 17 2020 ...WINTER WEATHER ADVISORY IS CANCELLED... Snow continues to taper off, on little, if any, additional snow accumulation is expected. Temperatures have dropped below freezing and into the 20s. Any melted snow or rain may freeze on untreated surfaces, resulting in slick and icy driving conditions. $$ NJZ001-007>010-PAZ054-055-060>062-101-103-105-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Sussex-Warren-Morris-Hunterdon-Somerset-Carbon-Monroe-Berks- Lehigh-Northampton-Western Chester-Western Montgomery-Upper Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 511 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy snow. Additional snow accumulations of 2 to 4 inches. Winds gusting as high as 35 mph. * WHERE...Portions of northern and northwest New Jersey and east central, northeast and southeast Pennsylvania. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ012-015-PAZ070-071-102-104-106-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Middlesex-Mercer-Delaware-Philadelphia-Eastern Chester- Eastern Montgomery-Lower Bucks- Including the cities of New Brunswick, Trenton, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 511 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy snow. Additional snow accumulations of 1 to 3 inches. Winds gusting as high as 35 mph. * WHERE...Portions of central and northern New Jersey and southeast Pennsylvania. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ013-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Western Monmouth- Including the city of Freehold 511 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy mixed precipitation. Additional snow accumulations of up to one inch and ice accumulations of a light glaze. Winds gusting as high as 40 mph. * WHERE...Western Monmouth. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MPS
403 WWUS41 KPHI 171014 CCA WSWPHI URGENT - WINTER WEATHER MESSAGE...CORRECTED National Weather Service Mount Holly NJ 514 AM EST Thu Dec 17 2020 DEZ001-NJZ016>019-171115- /O.COR.KPHI.WW.Y.0008.000000T0000Z-201217T1500Z/ New Castle-Salem-Gloucester-Camden-Northwestern Burlington- Including the cities of Wilmington, Pennsville, Glassboro, Camden, Cherry Hill, Moorestown, and Mount Holly 514 AM EST Thu Dec 17 2020 ...WINTER WEATHER ADVISORY IS CANCELLED... Snow continues to taper off, and little, if any, additional snow accumulation is expected. Temperatures have dropped below freezing and into the 20s. Any melted snow or rain may freeze on untreated surfaces, resulting in slick and icy driving conditions. $$ NJZ001-007>010-PAZ054-055-060>062-101-103-105-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Sussex-Warren-Morris-Hunterdon-Somerset-Carbon-Monroe-Berks- Lehigh-Northampton-Western Chester-Western Montgomery-Upper Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Easton, Honey Brook, Oxford, Collegeville, Pottstown, Chalfont, and Perkasie 514 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy snow. Additional snow accumulations of 2 to 4 inches. Winds gusting as high as 35 mph. * WHERE...Portions of northern and northwest New Jersey and east central, northeast and southeast Pennsylvania. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ012-015-PAZ070-071-102-104-106-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Middlesex-Mercer-Delaware-Philadelphia-Eastern Chester- Eastern Montgomery-Lower Bucks- Including the cities of New Brunswick, Trenton, Media, Philadelphia, West Chester, Kennett Square, Norristown, Lansdale, Morrisville, and Doylestown 514 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy snow. Additional snow accumulations of 1 to 3 inches. Winds gusting as high as 35 mph. * WHERE...Portions of central and northern New Jersey and southeast Pennsylvania. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NJZ013-171500- /O.CON.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Western Monmouth- Including the city of Freehold 514 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM EST THIS MORNING... * WHAT...Heavy mixed precipitation. Additional snow accumulations of up to one inch and ice accumulations of a light glaze. Winds gusting as high as 40 mph. * WHERE...Western Monmouth. * WHEN...Until 10 AM EST this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MPS
564 WWUS41 KPHI 171116 WSWPHI URGENT - WINTER WEATHER MESSAGE National Weather Service Mount Holly NJ 616 AM EST Thu Dec 17 2020 NJZ001-007>010-012-013-015-PAZ054-055-060>062-070-071-101>106- 171230- /O.CAN.KPHI.WS.W.0001.000000T0000Z-201217T1500Z/ Sussex-Warren-Morris-Hunterdon-Somerset-Middlesex- Western Monmouth-Mercer-Carbon-Monroe-Berks-Lehigh-Northampton- Delaware-Philadelphia-Western Chester-Eastern Chester- Western Montgomery-Eastern Montgomery-Upper Bucks-Lower Bucks- Including the cities of Newton, Washington, Morristown, Flemington, Somerville, New Brunswick, Freehold, Trenton, Jim Thorpe, Stroudsburg, Reading, Allentown, Bethlehem, Easton, Media, Philadelphia, Honey Brook, Oxford, West Chester, Kennett Square, Collegeville, Pottstown, Norristown, Lansdale, Chalfont, Perkasie, Morrisville, and Doylestown 616 AM EST Thu Dec 17 2020 ...WINTER STORM WARNING IS CANCELLED... Although there may be some lingering snow across portions of southeast Pennsylvania and northern New Jersey, little, if any, additional snow will accumulate. Please continue to exercise caution when traveling this morning, as untreated roads may be icy and dangerous. $$ MPS
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 15, 3:17 AM EST | High Wind Watch | PHI | Atlantic, Cape May, Monmouth, Ocean | 16 hr |
| Dec 15, 3:19 PM EST | Gale Warning | PHI | 42 hr | |
| Dec 15, 3:19 PM EST | Storm Warning | PHI | 38 hr | |
| Dec 15, 3:27 PM EST | Coastal Flood Warning | PHI | Atlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 1 more | 45 hr |
| Dec 15, 3:29 PM EST | Winter Weather Advisory | PHI | Burlington, Camden, Gloucester, Salem | 43 hr |
Nearby
Winter Storm Warnings in Pennsylvania, 2020Winter Storm Warnings in New Jersey, 2020Every winter storm warning in 2020
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.